feat: Allow sort records by event_timestamp or last_updated fields

frontend/components/commons/header/filters/FiltersList.vue

@@ -235,6 +235,10 @@ export default {
             a.key.toLowerCase() > b.key.toLowerCase() ? 1 : -1
           )) ||
         [];
+      const dateFields = [
+        this.sortByDateFilter("last_updated", "Last Updated"),
+        this.sortByDateFilter("event_timestamp", "Event Timestamp"),
+      ].filter(({ disabled }) => !disabled);
       const uncoveredByRules = {
         id: "uncovered_by_rules",
         key: "uncovered_by_rules",
@@ -243,9 +247,14 @@ export default {
         options: [true, false],
         selected:
           this.dataset.query.uncovered_by_rules &&
-          this.dataset.query.uncovered_by_rules.length > 0,
+          this.dataset.query.uncovered_by_rules?.length > 0,
       };
-      return [...filters, ...sortedMetadataFilters, uncoveredByRules];
+      return [
+        ...filters,
+        ...dateFields,
+        ...sortedMetadataFilters,
+        uncoveredByRules,
+      ];
     },
   },
   methods: {
@@ -264,7 +273,7 @@ export default {
     },
     selectGroup(group) {
       if (this.initialVisibleGroup === group) {
-        this.initialVisibleGroup =  null;
+        this.initialVisibleGroup = null;
       } else {
         this.initialVisibleGroup = group;
       }
@@ -290,6 +299,20 @@ export default {
       this.$emit("applySortBy", sortList);
       this.close();
     },
+    sortByDateFilter(id, name) {
+      return {
+        id: id,
+        key: id,
+        group: "Sort",
+        name: name,
+        disabled: this.recordPropertyHasValue(id),
+      };
+    },
+    recordPropertyHasValue(prop) {
+      return (
+        !this.dataset.results.records.some((record) => record[prop]) || false
+      );
+    },
   },
 };
 </script>

frontend/models/Common.js

@@ -31,6 +31,7 @@ class BaseRecord {
     status,
     selected,
     event_timestamp,
+    last_updated,
     search_keywords,
   }) {
     this.id = id;
@@ -40,6 +41,7 @@ class BaseRecord {
     this.status = status;
     this.selected = selected || false;
     this.event_timestamp = event_timestamp;
+    this.last_updated = last_updated;
     this.search_keywords = search_keywords || [];
   }